DISMANTLING, PARTLY IN-SITU, OF A GLOVE-BOX STRUCTURE OF A MIXED-OXIDE FUEL PLANT.

Información del proyecto

Identificador del acuerdo de subvención: FI1D0058

Proyecto cerrado

Fecha de inicio 1 Enero 1986

Fecha de finalización 31 Agosto 1990

Financiado con arreglo a

• Research programme (Euratom) concerning the decommissioning of nuclear installations, 1984-1988

Coste total Sin datos

Aportación de la UE Sin datos

Coordinado por

Belgonucléaire
Bélgica

Objetivo

THE DECOMMISSIONING OF STANDARD-SIZE PLUTONIUM GLOVE BOXES HAS BEEN PERFORMED IN SEVERAL COUNTRIES FOR MANY YEARS. HOWEVER, THE DISMANTLING OF VERY LARGE ALPHA-CONTAMINATED UNITS IS STILL A RATHER EXCEPTIONAL TASK.
PLUTONIUM RESEARCH LABORATORIES AND MIXED-OXIDE FUEL FABRICATION PLANTS HAVE TO BE DISMANTLED IN THE NEAR FUTURE. DURING THESE DISMANTLING TASKS, SEVERE PROBLEMS WILL ARISE WITH THE DECOMMISSIONING OF LARGE GLOVE-BOX STRUCTURES CONTAINING BIG AND HEAVY EQUIPMENT. SUCH UNITS HAVE TO BE PARTIALLY DISMANTLED ON PLACE AND THEN TRANSPORTED TO AN AD-HOC INSTALLATION FOR FURTHER DISMANTLING AND FINAL DISPOSAL.
THE TECHNIQUES USED UNTIL NOW FOR THE CONDITIONING OF STANDARD-SIZE GLOVE BOXES ARE NOT DIRECTLY APPLICABLE IN THE CASE OF A COMPLEX GLOVE-BOX STRUCTURE, TO BE DISMOUNTED PARTIALLY ON PLACE.
THE OBJECTIVE OF THIS RESEARCH IS TO DEVELOP ADEQUATE TECHNIQUES FOR DECOMMISSIONING AND PARTIAL DISMANTLING OF LARGE ALPHA-CONTAMINATED UNITS AND TO DEMONSTRATE THEIR FEASIBILITY BY CARRYING OUT SUCH A TASK WITHIN A PREFIXED TIME SCHEDULE AND IN RESPECT TO SAFETY AND COST.
THIS WORK COMPLEMENTS CONTRACT FI1D002400 "DECOMMISSIONING OF VERY LARGE GLOVE BOXES" OF THE PRESENT RESEARCH PROGRAMME.
WORKING PACKAGES B.2. AND B.3. OF THE INITIAL WORK PROGRAMME HAD TO BE ABANDONED FOR LICENSING REASONS. IN A SUPPLEMENTARY AGREEMENT CONCLUDED IN 1988, THE PRESENT REPLACEMENT PROGRAMME WAS DEFINED, CONCERNING STUDIES INTO THE FEASIBILITY OF PU/U OXIDE-CONTAMINED GLOVE BOX CLEANING BY BLASTING WITH DEEP FROZEN CO2 GRIT.

B.1. CONCEPTION OF A WORK PROCEDURE, PREPARATION OF SPECIAL EQUIPMENT,CONDITIONING AND DISMOUNTING OF THE GLOVE BOX.
B.2. CONCEPTION AND EXECUTION OF TESTS INTO CLEANING WITH DEEP-FROZEN CO2 GRIT BLASTING ON NON-ACTIVE GLOVE BOX SAMPLES.
B.2.1. CONCEPTION AND CONSTRUCTION OF AN EXPERIMENTAL FACILITY.
B.2.2. DEFINITION AND PREPARATION OF NON-RADIOACTIVE SAMPLES SIMULATING A PU/U OXIDE CONTAMINATION.
B.2.3. CO2 GRIT BLASTING TESTS WITH SUBSEQUENT ANALYSIS OF DECONTAMINATION EFFECTS.
B.2.4. COMPARATIVE TESTS WITH WATER, FREON AND CO2 GRIT AND SAFETY ANALYSIS WITH RESPECT TO AN APPLICATION ON RADIOACTIVE COMPONENTS.
B.3. CONCLUSIVE ASSESSMENT OF PRE-CLEANING BY BLASTING OF DEEP FROZEN CO2 GRIT OF PU/U OXIDE-CONTAMINATED GLOVE BOXES BEFORE DISMANTLING.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véase: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.

• ingeniería y tecnología › ingeniería ambiental › energía y combustibles

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Programa(s)

• FP1-DECOM 2C - Research programme (Euratom) concerning the decommissioning of nuclear installations, 1984-1988

Tema(s)

Datos no disponibles

Convocatoria de propuestas

Datos no disponibles

Régimen de financiación

CSC -

Coordinador

Belgonucléaire

• Aportación de la UE: Sin datos
• Dirección: 25,Place du Champ de Mars ; 1050 Bruxelles ; Bélgica
• Coste total: Sin datos